Still struggling with a wobbly supply chain and production slowdowns, Boeing lost $663 million, or $1.06 per share, in the fourth quarter despite Wall Street analysts’ expectation of a profit. Yet CEO Dave Calhoun was upbeat as he discussed the financial results in a teleconference with analysts Wednesday, choosing to focus on the gusher of cash Boeing is generating rather than the bottom line loss. “All things considered and reflecting on these last few years, we’re feeling pretty good about where we stand heading into this year,” Calhoun said. In an interview on CNBC earlier in the morning, …